Can Wine Make You A Better Investor?

Theme and Background

This chapter uses the memoir of Napa Valley winemaker Tor Kenward as a starting point to explore the commonalities in cognitive patterns between investing and winemaking. The author notes that Napa Valley has undergone tremendous change, growing from just a few dozen wineries in 1976 to over 800 today, and Tor has witnessed this entire process. The core question is: Why is humility equally critical in both investing and winemaking?

Core Thesis

The author argues that investing, like winemaking, has a never-ending learning curve, and humility is a necessary condition for long-term success. The counterintuitive judgment is that "luck" is not accidental but the result of actively seeking opportunities during crises — as Tor did after the 2014 earthquake destroyed 20% of his production. By re-tasting the surviving barrels and isolating the top-tier wine, he created the ultra-premium "Black Magic" wine. The author emphasizes that the real risk is not making mistakes, but being unable to recognize them due to the arrogance of "knowing it all."

Key Arguments and Data

• Napa Valley's Transformation: From just a few dozen wineries in 1976 to over 800 today; dining has evolved from ordinary restaurants to Michelin-starred establishments; tourism has shifted from a niche hobby to a major industry.
• 2014 Earthquake Losses: Tor lost 20% of his 2013 vintage production. By re-tasting the surviving barrels and isolating the top-tier wine, he created the ultra-premium "Black Magic" wine. The author, after tasting it personally, described it as "one of the best wines."
• The Eternal Learning Curve: Tor points out that the learning curve in winemaking is "forever," with only one "classroom" (i.e., one vintage) per year, and it can never be fully mastered. The author believes the same applies to investing.
• Evidence of Humility: The author cites internal practices at Oakmark — Chairman Tony Coniaris emphasizes "intellectual humility," and U.S. Research Director Alex Fitch states that "humility is one of the most important interview criteria when hiring analysts." The author also notes that interviews with "overconfident MBA" candidates are immediately terminated once they start boasting about personal investment records and offering to share "secrets."

Companies/Assets Involved

• TOR Wines: The winery founded by Tor Kenward. It lost 20% of its production in the 2014 earthquake but, by actively seeking opportunities during the crisis, created the ultra-premium "Black Magic" wine. The author holds it in extremely high regard.
• Beringer Wines: The winery where Tor worked from 1976 to 2001, one of Napa Valley's historic wineries.
• Oakmark (Harris Associates): The author's firm. It emphasizes humility as a key factor in its investment success and implements this philosophy in both hiring and investment decisions.

Investment Insights

• Investors should be wary of the arrogance of "knowing it all": Whether it's "experts" with 6–10 years of experience or overconfident MBA candidates, excessive confidence is often a precursor to fatal mistakes. True success comes from continuous learning and acknowledging ignorance.
• Seek opportunities in crises: During the "black swan" event of the 2014 earthquake, Tor actively reassessed surviving assets and created an ultra-premium product. The author suggests that the current bear market may similarly harbor "Black Magic"-style opportunities — Oakmark is "searching for this bear market's Black Magic."
• Humility is the foundation of long-term excess returns: Oakmark makes humility a core criterion in hiring and investment decisions, believing that only by maintaining an open mindset can one identify and correct mistakes amid uncertainty, thereby avoiding catastrophic losses.